title: Nuclear localization signal and cell synchrony enhance gene targeting efficiency in primary fetal fibroblasts.
mesh_terms: D000818:Animals; D001375:Azaguanine / Q000494:pharmacology; D001483:Base Sequence; D002417:Cattle; D002455:Cell Division / Q000187:drug effects / Q000502:physiology; D002478:Cells, Cultured; D004351:Drug Resistance; D005333:Fetus; D005347:Fibroblasts / Q000166:cytology / Q000187:drug effects / Q000378:metabolism*; D018390:Gene Targeting / Q000379:methods*; D005822:Genetic Vectors / Q000235:genetics; D007041:Hypoxanthine Phosphoribosyltransferase / Q000235:genetics; D008297:Male; D008969:Molecular Sequence Data; D016254:Mutagenesis, Insertional; D019913:Nuclear Localization Signals / Q000235:genetics*
chemical_list: D019913:Nuclear Localization Signals; D007041:Hypoxanthine Phosphoribosyltransferase; D001375:Azaguanine